經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（1 ) 本發明與依照申請專利範圍第1項之序文的木質纖維 板之生產方法有關。纖維材料之板的生產方法爲眾所周知 且已有極多實際之應用例。其製造含有下列之主要步驟： 將原料分解成大小適中之顆粒和/或纖維、乾燥至預定之 水分比且在乾燥之前或之後使材料膠合、膠合材料之成形 爲可被建構成數層之底板、可能之冷預壓、預熱、噴水於 表面等等以及在壓力下熱壓並在行程壓縮機或連續壓縮機 中加熱直到完成板成品爲止。 習用之熱壓期間，主要利用來自相鄰之加熱板或鋼帶 的加熱線圈來加熱受壓之材料。這些加熱器視受壓之產品 的型式、所使用之膠的型式、所需之性能等等而定地具有 攝氏1 50至200度之溫度。依此方法，則材料中之水 分在最靠近熱源之處被蒸發而使此區域中發展出乾燥層且 蒸氣前緣在持續壓縮之同時自各側邊逐漸移向板的中心。 當發展出乾燥層時，即謂此層中之溫度至少已是攝氏 1 0 0度，此溫度爲習用之膠開始熟化的溫度。當蒸氣前 緣已抵達中心時，中心處之溫度便至少已達攝氏1 0 0度 且板之中心處甚至開始熟化而使得壓作可在數秒內停止。 此製程所應用之時機爲使用諸如三聚氰胺強化（MU F ) 膠等習用之尿素甲醛膠（U F )或類似之膠時。當使用熟 化溫度較高之其他膠時，則在任何熟化得以開始之前板中 所需之溫度和蒸氣壓皆較高。習用之熱壓操作已發展出方 法來控制板之厚度方向上之板的密度輪廓。通常需要在表 面層處獲得高密度以便得到改進之可塗布性 '強度和類似 本紙張尺度適用中國國家標準（CNS ) Α4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) 訂 經濟部中央標準局員工消費合作社印製 A7 ___B7__ 五、發明説明（2 ). 性質而在中間層中得到適切之低密度。中間層內之密度應 ‘盡可能地低以便維持板之低重量和低成本但該密度又須足 夠高來達成可接受之橫向強度和其他類似之性質。當製成 粒狀板時，具有稍微較高之水分含量的磨屑便通常被用來 特別地造成板之表面層的較高密度。種種製造中密度纖維 板（MDF)的壓縮方法已被發展出來，該中密度纖維板 具有均質材料之結構以致於能依照預定之方法來控制熱源 間之距離且在蒸氣前緣朝向板之中間移動時熱源便逐漸移 至終止定位。例如，參見有關連續壓縮機之S E專利第 4 6 9 2 7 0號和有關於一次步驟之行程壓縮機之S E專 利申請第9 3 00772 — 2號。爲中密度纖維板所發展 出之方法現在亦可使用於其他之板型式或至少一部分之其 他板。 欲獲得所需之密度，則壓縮機必須在高溫下施加高表 面壓力。此操作在所謂之行程壓縮機中所作之非連續式壓 縮時不會產生問題，但此種壓縮機具有諸如較差之厚度公 差等等其他缺點。當使用連續壓縮機時，同時要有高表面 壓力和高溫度之需求會導致昂貴之高精度方法，此高精度 方法乃有關於鋼帶與位於下方之加熱板間之滾子氈。經由 加熱線圈將熱供給板的方法所耗之加熱時間極久以致於造 成較長之壓縮長度（較大之壓縮表面）。此外，實際上不 可能使連續壓縮機之加熱板有足夠之撓性且密度輪廓無法 被設計成具有與行程壓縮機相等之幅度。 當今之連續壓縮機亦（因滾子氈中之潤滑油而）相關 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐" -5 - (請先閲讀背面之注意事項再填寫本頁) 訂 A7 __B7_ 五、發明説明_( 3 ) 於溫度地受到限制，此謂並非所有型式之板皆可被壓縮。 板之製造的另一種方法所植基之事實爲蒸氣被引入行 程壓縮機之加熱板之間亦已達到有限之成就。由於材料在 引入蒸氣時十分迅速地被加熱，故加熱所需之時間可徹底 地減少。此外，引入蒸氣時可大量地減小材料對壓縮之阻 抗。此爲正面效應且意謂著壓縮機可被製成提供較小之壓 縮力且可被製成實質地較短（較小之壓縮表面）。欲獲得 依照此方法所製成之板的合宜密度輪廓，已有必要使用具 有高表面壓力之習用壓縮技術和在壓縮循環之初利用習用 之加熱板來作熱傳導使得長期之加熱時段以後能獲得高密 度之表面層。唯有經過此種操作之後，·方有可能將蒸氣吹 至板之中間部分。如此一來，由於有-必要將蒸氣吹過新近 成形之高密度表面層，於是發生問題。還有，由於高壓力 和熱傳導之要求使得所需之壓縮時間在加熱時段內大大地 增加。以上所有皆導致實質上較低之蒸氣壓縮機性能，或 者換句話說導致蒸氣壓縮機有較大之壓縮表面，且在與需 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 要均一之密度時所需之力量相比之下須要求較大之壓縮力 〇 具有低強度、無法接受之可塗布性等等性質之軟性表 面層可利用上述所有製造方法來製造，此謂此表面層必須 以研磨方式移除。因此，視板之型式、厚度等等而定地造 成5至1 5%之材料損失。 即使利用引入蒸氣而加熱之連續程序來製造板早已成 爲已知之方法。例如參見EP383572、 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 經濟部中史樣準局員工消費合作社印製 A7 ________B7 _ 五、發明説明丨4 ). US2480851'GB999696' DE2058820、DE3640682、 DE4009883 及 AU57390/86 。 利用蒸氣箱可將蒸氣噴射至材料中，但此法有某些缺 點。欲消除這些缺點，則已發展出具有穿孔壓縮滾子的裝 置，此裝置被用來當作蒸氣引入構件。此種裝置之說明在 SE502810 之中。 S E 5 0 2 2 7 2說明一種方法，此方法利用蒸氣加 熱之優點來達成板成品所需之密度輪廓。壓縮在兩個步驟 中進行，其中第一步驟中之底板被壓縮成適度之密度，此 密度在底板之整個厚度上具有大致均一之密度輪廓。第二 步驟中，底板被壓縮成較高之密度，其中密度輪廓並非均 、. 一以致於表面層之密度高於板之中間部分》板在兩步驟之 間被完全熟化或部分熟化。 本發明之目標欲移除製造具有高密度輪廓之纖維板所 用的習知技術伴隨而來之缺點且欲利用蒸氣加熱纖維底板 的優點。 依照本發明，此目標之達成乃依照本發明於申請專利 範圍第1項之序文中所說明之方法和申請專利範圍第1項 之本文中所含有之步驟。 依此方法引入蒸氣，則纖維底板將具有非均質之結構 ，其中表面層因引入蒸氣而變得較軟且熟化，同時中間層 則大體上未受影響β於是已作成調節而使繼之之校正壓縮 製出具有某種密度輪廓之板，與預壓時完成者相比則此製 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） (請先閲讀背面之注意事項再填寫本頁) 訂 -7 - A7 B7 五、發明説明（5 ) 法可被容許於較大之厚度時發生，故可在實質上維持其密 度之表面層底下容許未受影響之中間層膨脹。中間層之密 度因此低於表面層之密度。如於序文中所述，許多情況下 需要使表面層之密度高於板之其餘部分且本發明之方法提 出不複雜也不昂貴之解決之道來達成此目標，其中已避免 利用習知方法來製造該種密度之板時所伴隨而來之缺點。 底板應在噴射蒸氣之時或緊接於其後被預壓》 此方法尤其適於板之連續生產，其中蒸氣較佳地被引 至滾子或滾子群之處，這些滾子被用作預壓。 密度提高之表面層的厚度可藉調節引入蒸氣之量的方 式而產生以致於板件相關於例如彎曲強度和可處理性等方 面之特性可因而被調成適用於不同之應用例。 本發明之方法的上述和其他較佳之實施例皆在隨後之 申請專利範圍中加以說明。 本發明之較佳實施例在以下之詳細說明中有詳盡之解 說且較佳之實施例顯示於以下之附圖中，其中 經濟部中央標準局員Η消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 附圖1爲壓縮時沿著底板和板件之長度所作之示意性 橫斷剖面視圖， 附圖2爲通過依照本發明所生產之板的放大橫斷剖面 視圖， 附圖3爲圖示附圖2中所示之板的密度輪廓之線圖， 附圖4爲滾子之示意性橫斷剖面視圖，其中蒸氣經由 該滾子被引入， 附圖5爲附圖3之滾子的一部分之橫斷剖面視圖* 本紙張尺度適用中國國家標準（CNS ) A4規掩（210X297公釐） " 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明t 6 ) 附圖6爲附圖5之滾子的一部分之軸向橫斷剖面視圖 ，且 附圖7爲示意性之橫斷剖面視圖，此視圖顯示依照本 發明之較佳實施例的不同處理步驟。 附圖1顯示纖維底板1如何被輸送於箭號A所指之方 向且如何被壓縮成板2 1。底板被一雙成對之滾子2、3 預壓成密度接近所需之表面密度者。蒸氣經由滾子2、3 被引入之方式在下文中有較詳細之解說》經由滾子2、3 被引入之蒸氣的量受到仔細的調整使得蒸氣貫穿且僅加熱 底板之表面層。此表面層之厚度與蒸氣之添加量成比例且 因此可由蒸氣量來加以調節。 藉著引入之蒸氣的加熱可使表面層軟化及熟化。底板 中間所設之層沒有貫穿之蒸氣通達以致於未受影響。 底板通過一雙成對之滾子2、3之後，該底板便到達 校正區，底板在此校正區內被校正成所需之最終厚度。此 厚度大於板通過滾子2、3時之厚度以致於未受影響之中 間層膨脹。通過此校正區期間，熱被引入之程度使得中間 層熟化。滾子壓縮機2 2可爲不同之裝置，例如習用之滾 子氍或液壓氍等。其結果爲板成品獏得密度高於中間層之 表面層◊—雙成對之滾子2 2間所作之壓縮步驟期間，熱 被引入且板被壓縮，而熱被添加直到中間層熟化至某種強 度爲止，該強度使其能抵抗內存之膨脹力。 附圖2顯示以橫斷剖面視圓觀看之板成品21。兩個 表面層2 1 a和2 1 b之密度皆約爲8 〇 0公斤/立方公 本&張尺度^用不國國家標準（CNS ) A4規格（210X297公釐） -9 一 (請先閱讀背面之注意事項再填寫本頁)Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of the Invention (1) The present invention relates to the production method of wood fiberboard according to the preamble of the first patent application. The production method of fiber material board is well known and has many practical applications. Its manufacturing includes the following main steps: decomposing the raw materials into particles and / or fibers of moderate size, drying to a predetermined moisture ratio, and gluing the material before or after drying, and forming the gluing material into a base plate that can be constructed into several layers , Possible cold pre-pressing, pre-heating, spraying water on the surface, etc. and hot pressing under pressure and heating in the stroke compressor or continuous compressor until the finished plate is completed. During the conventional hot pressing, the heating material from the adjacent heating plate or steel strip is mainly used to heat the pressed material. These heaters have a temperature of 150 to 200 degrees Celsius depending on the type of the product being pressed, the type of glue used, the required performance, and the like. According to this method, the moisture in the material is evaporated at the place closest to the heat source, so that a dry layer develops in this area, and the leading edge of the vapour gradually moves from the sides to the center of the plate while continuing to compress. When a dry layer is developed, it means that the temperature in this layer is at least 100 degrees Celsius, and this temperature is the temperature at which the conventional gum begins to mature. When the leading edge of the vapor has reached the center, the temperature at the center has reached at least 100 degrees Celsius and the center of the plate has even begun to ripen, so that the pressing can be stopped in a few seconds. This process is applied when using conventional urea-formaldehyde glue (U F) or similar glue such as melamine reinforced (MU F) glue. When other glues with higher curing temperatures are used, the temperature and vapor pressure required in the board are higher before any curing can begin. Conventional hot pressing operations have developed methods to control the density profile of the board in the thickness direction of the board. It is usually necessary to obtain high density at the surface layer in order to obtain improved coatability. The strength and similarity of this paper are applicable to China National Standard (CNS) A4 specifications (210 X 297 mm) (Please read the precautions on the back before filling in this Page) Ordered by the Consumer Standards Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs to print A7 ___B7__ V. Description of Invention (2). The nature and appropriate low density in the middle layer. The density in the middle layer should be 'as low as possible in order to maintain the low weight and low cost of the board but the density must be high enough to achieve acceptable lateral strength and other similar properties. When made into a granular board, abrasive dust having a slightly higher moisture content is usually used to specifically cause a higher density of the surface layer of the board. Various compression methods for manufacturing medium density fiberboard (MDF) have been developed. The medium density fiberboard has a structure of homogeneous material so that the distance between heat sources can be controlled according to a predetermined method and the heat source is moved when the leading edge of the vapor moves toward the middle of the board. Then it gradually moves to the end position. See, for example, the SE patent No. 4 6297 for continuous compressors and the SE patent application No. 9 3 00772-2 for one-step stroke compressors. The method developed for MDF can now also be applied to other board types or at least some other boards. To achieve the required density, the compressor must apply high surface pressure at high temperatures. This operation does not cause problems in discontinuous compression performed in so-called stroke compressors, but such compressors have other disadvantages such as poor thickness tolerances. When using a continuous compressor, the need for both high surface pressure and high temperature will result in an expensive high-precision method. This high-precision method is related to the roller felt between the steel strip and the heating plate located below. The method of supplying heat to the plate via a heating coil takes so long that it results in a longer compression length (larger compression surface). In addition, it is practically impossible to make the heating plate of a continuous compressor sufficiently flexible and the density profile cannot be designed to have the same magnitude as a stroke compressor. Today's continuous compressors are also related (because of the lubricating oil in roller felt). This paper size is applicable to China National Standard (CNS) A4 specifications (210X297 mm " -5-(Please read the precautions on the back before filling in this Page) Order A7 __B7_ V. Description of the invention _ (3) Due to temperature restrictions, this means that not all types of boards can be compressed. The fact that another method of board manufacturing is based on the fact that steam is introduced into the stroke compressor Limited achievements have also been achieved between the heating plates. Since the material is heated very quickly when steam is introduced, the time required for heating can be completely reduced. In addition, the resistance to compression of the material can be greatly reduced when steam is introduced. This is a positive effect and means that the compressor can be made to provide less compressive force and can be made substantially shorter (smaller compression surface). It is desirable to obtain a plate made according to this method Density profile, it is necessary to use the conventional compression technology with high surface pressure and use the conventional heating plate for heat conduction at the beginning of the compression cycle to achieve high density after a long heating period The surface layer. Only after this operation, it is possible to blow steam to the middle part of the board. As a result, it is necessary to blow steam through the newly formed high-density surface layer, so problems occur. Also Yes, due to the requirements of high pressure and heat conduction, the required compression time is greatly increased during the heating period. All of the above results in a substantially lower performance of the steam compressor, or in other words, a larger compression of the steam compressor Surface, and printed with the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). The force required for uniform density requires a larger compression force. A soft surface layer with low strength, unacceptable coatability, etc. can be manufactured using all the above manufacturing methods, which means that the surface layer must be removed by grinding. Therefore, it depends on the type, thickness, etc. of the board Ground causes 5 to 15% material loss. Even using continuous processes to introduce steam to heat the board has long been known. For example, see EP3835. 72. This paper size is in accordance with Chinese National Standard (CNS) A4 (210X297 mm). Printed by the Consumer Cooperatives of the Bureau of Historical Standards in the Ministry of Economic Affairs. A7 ________B7 _ 5. Description of the invention 丨 4). DE4009883 and AU57390 / 86. Steam can be injected into the material using a steam box, but this method has some disadvantages. To eliminate these disadvantages, devices with perforated compression rollers have been developed which are used as vapor introduction members. This device is described in SE502810. S E 5 0 2 2 7 2 illustrates a method that takes advantage of steam heating to achieve the desired density profile of the finished board. Compression is performed in two steps, with the base plate in the first step being compressed to a moderate density, which has a substantially uniform density profile over the entire thickness of the base plate. In the second step, the bottom plate is compressed to a higher density, in which the density profile is not uniform, so that the density of the surface layer is higher than that of the middle portion of the plate. The plate is fully or partially cured between the two steps. The object of the present invention is to remove the disadvantages associated with the conventional techniques used to manufacture fiberboards with high density profiles and the advantages of using steam to heat the fiberboard. According to the present invention, this objective is achieved in accordance with the method described in the preamble of the scope of patent application and the steps contained in the article of scope of patent application in accordance with the present invention. By introducing steam in this way, the fiber base plate will have a heterogeneous structure, in which the surface layer is softened and matured due to the introduction of steam, while the middle layer is substantially unaffected. Β has been adjusted so that it can be corrected. Compressed to produce a board with a certain density profile. Compared with the pre-pressed finisher, the paper size of this paper applies the Chinese National Standard (CNS) A4 specification (210 × 297 mm) (Please read the precautions on the back before filling this page ) Order -7-A7 B7 V. Description of the invention (5) The method can be allowed to occur at a larger thickness, so the unaffected intermediate layer can be allowed to expand under the surface layer that substantially maintains its density. The density of the intermediate layer is therefore lower than the density of the surface layer. As stated in the preamble, in many cases it is necessary to make the surface layer denser than the rest of the board and the method of the present invention proposes a solution that is not complicated and expensive to achieve this goal, where conventional methods have been avoided Disadvantages associated with the manufacture of boards of this density. The bottom plate should be pre-pressed at the time of or immediately after the steam is sprayed. This method is particularly suitable for continuous production of plates, where the steam is preferably directed to rollers or groups of rollers, which are used as Preload. The thickness of the surface layer with an increased density can be produced by adjusting the amount of vapor introduced, so that the characteristics of the plate related to aspects such as bending strength and processability can be adjusted to suit different applications. The above and other preferred embodiments of the method of the present invention are described in the scope of subsequent patent applications. The preferred embodiment of the present invention is explained in detail in the following detailed description and the preferred embodiment is shown in the following drawings, which is printed by the Central Standards Bureau of the Ministry of Economic Affairs and Consumer Cooperatives (please read the precautions on the back before (Fill in this page) Figure 1 is a schematic cross-sectional view along the length of the bottom plate and the plate during compression, Figure 2 is an enlarged cross-sectional view of a plate produced by the present invention, and Figure 3 is A diagram showing the density profile of the plate shown in FIG. 2, FIG. 4 is a schematic cross-sectional view of a roller in which steam is introduced through the roller, and FIG. 5 is a roller of FIG. 3 A cross-section view of a part of the paper * This paper size is applicable to the Chinese National Standard (CNS) A4 (210X297 mm) " Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of invention t 6) It is an axial cross-sectional view of a part of the roller of FIG. 5, and FIG. 7 is a schematic cross-sectional view, which shows different processing steps according to the preferred embodiment of the present invention. Figure 1 shows how the fiber base plate 1 is transported in the direction indicated by arrow A and how it is compressed into a plate 21. The bottom plate is pre-pressed by a pair of rollers 2, 3 to a density close to the required surface density. The way that steam is introduced through rollers 2 and 3 is explained in more detail below. The amount of steam introduced through rollers 2 and 3 is carefully adjusted so that the steam penetrates and only heats the surface layer of the bottom plate. The thickness of this surface layer is proportional to the amount of steam added and can therefore be adjusted by the amount of steam. The surface layer is softened and matured by the heating of the introduced steam. The layer in the middle of the bottom plate is not penetrated by the vapor so that it is not affected. After the base plate has passed through a pair of rollers 2, 3, the base plate reaches the correction area, and the base plate is corrected to the required final thickness in this correction area. This thickness is greater than the thickness of the plate when passing the rollers 2 and 3 so that the unaffected intermediate layer expands. To the extent that heat is introduced through this correction zone, the intermediate layer matures. The roller compressor 22 may be a different device, such as a conventional roller 氍 or a hydraulic 氍. The result is that the finished plate has a higher density than the surface layer of the intermediate layer. During the compression step made between the two pairs of rollers 22, heat is introduced and the plate is compressed, and heat is added until the intermediate layer matures to a certain level. This strength makes it able to resist the expansion force of the memory. Fig. 2 shows a finished plate 21 viewed in a cross-section viewing circle. The density of the two surface layers 2 1 a and 2 1 b is about 8000 kg / cubic cubic & Zhang scale ^ use the national standard (CNS) A4 specification (210X297 mm) -9 1 (please first (Read the notes on the back and fill out this page)
1T 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（7 ) 尺而中間層之密度約爲6 0 0公斤/立方公尺。此圖示於 附圖3之線圖中。 各滾子2、3皆可依照SE50281 0中所說明之 方法和附圖4、附圖5及附圖6中所顯示之方法來設計。 附圖5中所示之壓縮與噴射滾子2被建構成具有穿孔 之殼套表面6以便將蒸氣遞送予底板1。軸向通道系統7 被設置在滾子2四周之殼套表面6的內部。通道系統7適 於將蒸氣分布在滾子2上且因而沿著底板1之寬度分布。 (附圖6中之）可調式滑動靴被列置成與滾子2之一端部 成密封式嚙合以便將蒸氣引入通道系統7。因此，蒸氣之 引入被施行於（附圖4中之）有限區段，該區段爲底板1 受壓之處。如自周邊處觀之，有限之扇形區9的兩側被密 封區1 0包圍住，該密封區爲滾子2與底板1接觸之處。 通道系統7可在滾子2之對立端處被封閉。換個方式的話 ，可在各端處設置滑動靴8。 滑動靴8被可調式支架固持於定位使得滑動靴可在沿 著周邊之方向上被調整。依此方式.，則可改變噴射扇形區 9之定位。滑動靴8較佳地含有可置換之磨耗部分1 4， 此磨耗部分由低摩擦材料製成而承靠在滾子2之端部上的 處理過的表面。如此一來，滑動靴8.便可例如藉彈簧、壓 縮空氣之助或以液壓之方式被固持住且推靠在滾子2之端 部上，故可將密封表面'上之任何洩漏減至最少。 滑動靴8可被建構成具有一道或一道以上之通道11 、1 2、1 3，這些通道可具有不同之表面積。即使是其 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閎讀背面之注意事項再填寫本頁) 訂 -10 - A7 B7 經濟部中央標準局員工消費合作杜印製 五、發明説明（8 ) 間界定有不同開口的可置換式磨耗部分14亦可引用諸如 滑板等物件，該滑板具有可加以改變之開口。於是，噴射 扇形區9之尺寸得以改變。尤有甚者，噴射扇形區9之不 同部分中可維持不同之流動和壓力。滑動靴8之通道可被 作爲清潔和吸取之用》 附圖6以示意之方式顯示滑動靴8中抵靠著滾子2之 端部的接觸表面。依此方式，則滑動靴8配備有蒸氣、清 潔通道1 2和吸取通道1 3所需之噴射通道1 1。 滾子2上之穿孔殼套表面6可爲衝孔或鑽孔之板金， 此板金之形狀成圈形且已被熱縮於滾子上。板金之軸向支 持線腳15可利用銑削或鑄造之方式被造形於滾子上之殼 套板金1 6內或者板金可被建構成分開之線腳而附著在殼 套板金1 6中之凹進內。這些線腳可同時限制通道系統7 ，此通道系統設置在殼套表面6之內部。 通道系統7中位於滾子端部處且尙未被滑動靴8覆蓋 之開口可藉著將可調式滑動圈壓靠著端部之方式加以密封 ，該可調式滑動圈由低摩擦材料製成。 附圖7顯示依照本發明之方法，此方法含有種種處理 步驟，這些處理步驟較佳地發生於真正壓縮之前及之後。 材料底板1被調成預定之溫度、水分含量及密度。 壓縮板成品2 1通過後調節區2 0 »再者，諸如甲醛 等氣體聚集在此區域中，該甲醛氣體由壓縮板放出。由於 壓縮時所產生之板的高溫造成板被塑化成難以操縱的程度 ，故板亦被容取在調節區中冷卻。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 一 11 一 (請先閲讀背面之注意事項再填寫本頁) 、νβ λ,μ.1T Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (7) feet and the density of the middle layer is about 600 kg / m3. This diagram is shown in the line diagram of FIG. Each of the rollers 2 and 3 can be designed according to the method described in SE50281 0 and the methods shown in FIGS. 4, 5, and 6. The compression and injection rollers 2 shown in FIG. 5 are constructed as a shell surface 6 with perforations to deliver vapor to the base plate 1. An axial channel system 7 is provided inside the casing surface 6 around the roller 2. The channel system 7 is suitable for distributing the vapor on the rollers 2 and thus along the width of the bottom plate 1. (FIG. 6) Adjustable sliding shoes are arranged in sealing engagement with one end of the roller 2 to introduce steam into the channel system 7. Therefore, the introduction of steam is performed in a limited section (in Fig. 4), which is where the bottom plate 1 is compressed. As seen from the periphery, both sides of the limited sector 9 are surrounded by a sealing area 10, which is where the roller 2 contacts the bottom plate 1. The channel system 7 can be closed at the opposite end of the roller 2. In another way, sliding boots 8 can be provided at each end. The sliding shoe 8 is held in position by an adjustable bracket so that the sliding shoe 8 can be adjusted in a direction along the periphery. In this way, the positioning of the spray sector 9 can be changed. The sliding shoe 8 preferably contains a replaceable wear portion 14 which is made of a low-friction material and bears against the treated surface of the end of the roller 2. In this way, the sliding shoe 8. can be held and pushed against the end of the roller 2 by means of spring, compressed air or hydraulically, for example, so that any leakage on the sealing surface can be reduced to least. The sliding shoe 8 can be constructed to have one or more channels 11, 1, 2, 1 3, and these channels can have different surface areas. Even if the paper size is in accordance with Chinese National Standard (CNS) A4 specification (210X297 mm) (please read the notes on the back before filling out this page) Order -10-A7 B7 Consumption Cooperation of Employees, Central Standards Bureau, Ministry of Economic Affairs Fifth, the description of the invention (8) The replaceable abrasion part 14 with different openings defined between them can also refer to objects such as slides, which have openings that can be changed. Thus, the size of the ejection sector 9 is changed. In particular, different flows and pressures can be maintained in different parts of the jet sector 9. The channel of the sliding shoe 8 can be used for cleaning and sucking. "Fig. 6 shows the contact surface of the sliding shoe 8 against the end of the roller 2 in a schematic manner. In this way, the sliding shoe 8 is equipped with the spray channels 11 required for the steam, the cleaning channels 12 and the suction channels 13. The perforated shell surface 6 on the roller 2 may be punched or drilled sheet metal. The shape of the sheet metal is ring-shaped and has been heat-shrinked on the roller. The sheet metal's axial support leg 15 can be formed on the roller by milling or casting. The sheet metal 16 can be constructed or the sheet metal can be constructed as a separate leg and attached to the recess in the sheet metal 16. These pins can simultaneously limit the channel system 7 which is arranged inside the shell surface 6. The opening in the channel system 7 located at the end of the roller and not covered by the sliding shoe 8 can be sealed by pressing an adjustable sliding ring against the end, which is made of a low-friction material. Figure 7 shows a method according to the invention, which method comprises various processing steps, which preferably take place before and after the actual compression. The material base plate 1 is adjusted to a predetermined temperature, moisture content, and density. The finished compression board 21 passes through the post-adjustment zone 20 »Furthermore, gas such as formaldehyde collects in this area, and the formaldehyde gas is emitted from the compression board. Due to the high temperature of the board generated during compression, the board is plasticized to a degree that is difficult to handle, so the board is also allowed to cool in the conditioning zone. This paper size applies to Chinese National Standard (CNS) A4 specifications (210X297 mm)-11 1 (Please read the precautions on the back before filling this page), νβ λ, μ.
396101 A7 ___._B7 _,_^_ 五、發明説明（9 ) 本發明之方法的上述較佳實施例已與板之製造一起加 以說明，該板之表面層的兩側具有提高之密度。知悉普通 技術者應明白的是可替代之例中蒸氣可僅被引至底板之一 側以便製造該側上具有提高之密度的板。同樣地’應明白 的是可調節蒸氣之量使得不同量之蒸氣被引至底板兩側上 因而獲得其不同厚度之表面層具有提高之密度的板。 (請先閲讀背面之注意事項再填寫本頁) -、tT, 經濟部中夬標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）396101 A7 ___._ B7 _, _ ^ _ V. Description of the invention (9) The above-mentioned preferred embodiments of the method of the present invention have been explained together with the manufacture of the board, and the two sides of the surface layer of the board have an increased density. Those skilled in the art will appreciate that in the alternative, the vapor may be directed to only one side of the base plate in order to make a board with increased density on that side. Similarly, it should be understood that the amount of steam can be adjusted so that different amounts of steam are introduced to both sides of the bottom plate, thereby obtaining a board having an increased density of surface layers of different thicknesses. (Please read the notes on the back before filling out this page)-, tT, printed by the China Consumers' Standards Cooperative Bureau of the Ministry of Economic Affairs This paper size applies to China National Standard (CNS) A4 (210X297 mm)